Bottom grinding machine and bottom grinding method

Abstract

The invention discloses a bottom polishing machine and a bottom polishing method, and belongs to the technical field of polishing, the bottom polishing machine comprises a conveying belt, the upper side of the conveying belt is provided with a polishing area, and the lower side of the conveying belt is provided with a second cleaning area; the grinding device comprises a grinding assembly and a grinding dust-proof cover, a feeding port and a discharging port are formed in the positions, corresponding to the upper side of the conveying belt, of the left wall and the right wall of the grinding dust-proof cover correspondingly, and the grinding dust-proof cover is provided with a first dust suction port; the first cleaning device comprises a first brush roller arranged at the discharging port, and the first brush roller is used for cleaning the conveying belt and the ceramic parts on the conveying belt leftwards; and the second sweeping device comprises a second dust isolation cover arranged on the second sweeping area in a covering mode and a second brush roller arranged in the second dust isolation cover, the second brush roller is used for sweeping the conveying belt, and the second dust isolation cover is provided with a second dust suction opening. And ceramic dust attached to the conveying belt is subjected to secondary cleaning, and ceramic pieces are not prone to slipping. According to the bottom polishing method, the bottom polishing machine is used for polishing the bottom feet of the ceramic part.

Description

Technical Field

[0001] This invention relates to the field of polishing technology, and in particular to a bottom polishing machine and a bottom polishing method. Background Technology

[0002] In the production of ceramic parts, especially after ceramic plates and bowls are fired, the bottom of the ceramic parts needs to be polished to prevent scratches caused by uneven bottoms. In order to improve production efficiency, a bottom polishing machine that uses a conveyor belt to transport ceramic parts for continuous polishing has been designed and manufactured. However, it has been found in use that such a bottom polishing machine is prone to slipping on the ceramic parts during polishing, resulting in a high breakage rate and low finished product quality. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a bottom grinding machine and a bottom grinding method.

[0004] A bottom grinding machine according to an embodiment of the present invention includes: The conveyor belt has a grinding area on its upper side and a second cleaning area on its lower side, with the conveying direction to the right. A grinding device includes a grinding component and a grinding dust cover covering the outside of the grinding area. The grinding component is used to grind ceramic parts on the grinding area. The left and right walls of the grinding dust cover are respectively provided with a feed inlet and a discharge outlet corresponding to the upper side of the conveyor belt. The grinding dust cover is provided with a first dust suction port. The first cleaning device includes a first brush roller disposed at the discharge port, the first brush roller being used to clean the conveyor belt and the ceramic parts on the conveyor belt to the left; The second cleaning device includes a second dust cover covering the second cleaning area and a second brush roller disposed inside the second dust cover. The second brush roller is used to clean the conveyor belt, and the second dust cover is provided with a second suction port.

[0005] The grinding machine according to embodiments of the present invention has at least the following technical effects: the first cleaning device can clean the ceramic parts and the ceramic dust on the conveyor belt at the same time, and sweep the ceramic dust into the grinding area, so that most of the ceramic dust formed during grinding is sucked away by the first suction port; the second cleaning device can further clean the conveyor belt after the ceramic parts are removed, so that the remaining small part of the ceramic dust is sucked away by the second suction port; the ceramic dust attached to the conveyor belt is cleaned in two stages, and the ceramic parts are less likely to slip.

[0006] According to some embodiments of the present invention, a first dust cover is provided on the outer side of the first brush roller.

[0007] According to some embodiments of the present invention, the first dust cover includes a fixed portion fixed to the grinding dust cover and an opening and closing portion overlapping the fixed portion. The opening and closing portion is hinged to the fixed portion by a first hinge shaft extending front and rear. The first brush roller is disposed in the opening and closing portion. A locking mechanism is provided between the fixed portion and the opening and closing portion.

[0008] According to some embodiments of the present invention, the fixing part is provided with a plurality of positioning holes, the plurality of positioning holes are arranged in an arc around the first hinge axis, the opening and closing part is provided with a insertion hole, the locking mechanism includes a pin that passes through the insertion hole and is inserted into one of the positioning holes, and a first elastic member is connected between the pin and the opening and closing part.

[0009] According to some embodiments of the present invention, the polishing assembly includes at least one polishing mechanism, the polishing mechanism including a lifting seat slidably connected vertically to the polishing dust cover and a polishing motor disposed on the lifting seat, the bottom of the polishing motor is provided with a drive shaft, the drive shaft is provided with a polishing head, and the polishing dust cover is provided with a first driver for driving the lifting seat to move up and down.

[0010] According to some embodiments of the present invention, the grinding dust cover is provided with a horizontally arranged partition, the drive shaft passes through the partition, and the grinding head is located below the partition.

[0011] According to some embodiments of the present invention, the polishing assembly includes three polishing mechanisms, which are arranged sequentially at intervals along the transverse direction.

[0012] According to some embodiments of the present invention, the front and rear walls of the polishing dust cover are provided with the first dust suction port, and the number of polishing components is two, with the two polishing mechanisms arranged at an interval.

[0013] According to some embodiments of the present invention, the grinding dust cover is provided with a base, and the two grinding components are respectively connected to the front and rear sides of the base.

[0014] According to a second aspect embodiment of the present invention, a grinding method is used to grind the base of a ceramic part using the aforementioned grinding machine. The grinding method includes the following steps: Place the ceramic parts upside down at the upstream end of the conveyor belt; The conveyor belt is controlled to transport the ceramic parts to the polishing area; Control the grinding components to grind the ceramic parts located in the grinding area; Control the conveyor belt to transport ceramic parts to the right, and control the first brush roller to clean the conveyor belt and the ceramic parts passing under it; Remove the ceramic parts that have been conveyed to the right end of the conveyor belt; Control the second brush roller to clean the conveyor belt.

[0015] According to the second aspect of the present invention, the grinding method has at least the following technical effects: by setting up the grinding machine described above, the first brush roller and the second brush roller can clean the ceramic dust attached to the conveyor belt, which is beneficial to increasing the friction between the ceramic parts and the conveyor belt and preventing slippage.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a three-dimensional structural schematic diagram of the grinding machine according to an embodiment of the present invention; Figure 2 This is a cross-sectional schematic diagram of a polishing dust cover according to an embodiment of the present invention; Figure 3 This is a cross-sectional schematic diagram of the opening and closing portion in one embodiment of the present invention; Figure 4 This is a right-side cross-sectional view of the grinding machine according to an embodiment of the present invention; In the attached image: 100-Base frame; 200-Grinding dust cover; 201-Opening and closing door; 202-Partition; 203-First dust suction port; 204-Base; 210-Lifting seat; 220-First driver; 230-Grinding motor; 240-Grinding head; 300-Conveyor belt; 310-Opening and closing part; 320-Locking mechanism; 321-Pin; 330-First brush roller; 340-Fixing part; 341-Positioning hole; 410-Second dust cover; 411-Second dust suction port; 420-Second brush roller; 910-Control cabinet; 920-Switch box. Detailed Implementation

[0018] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0019] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc., are understood to exclude the stated number, while "above," "below," "within," etc., are understood to include the stated number. If "first" or "second" is used, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0020] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0021] The following is for reference. Figures 1 to 4 A grinding machine and grinding method according to embodiments of the present invention are described.

[0022] The grinding machine of the first aspect of the present invention, referring to Figure 1 It includes a base frame 100, a conveyor belt 300, a grinding device, a first cleaning device, and a second cleaning device.

[0023] The conveyor belt 300 is set on the base frame 100 with the conveying direction of the conveyor belt 300 to the right. The conveyor belt 300 includes a ring-shaped belt body and at least two rollers extending forward and backward. The two rollers are spaced apart from each other on the left and right. The belt body is sleeved on the outside of the two rollers. The conveyor belt 300 also includes a conveyor motor for driving one of the rollers to rotate. Starting the conveyor motor will cause the upper part of the belt body to move from left to right and the lower part of the belt body to move from right to left. A grinding area is provided on the upper side of the conveyor belt 300 and a second cleaning area is provided on the lower side of the conveyor belt 300. The grinding device includes a grinding component and a grinding dust cover 200 disposed outside the grinding area. The bottom of the grinding dust cover 200 is the conveyor belt 300. The grinding dust cover 200 includes a front wall, a rear wall, a left wall, a right wall, and a top wall. The left and right walls of the grinding dust cover 200 are respectively provided with an inlet and an outlet on the upper side of the conveyor belt 300, so that the ceramic parts can pass through the inlet and outlet with the conveyor belt 300. The grinding dust cover 200 is provided with a first dust suction port 203, which can be provided on the front wall or the rear wall. The grinding assembly is used to grind the ceramic parts on the grinding area. In use, the first dust suction port 203 can be connected to the factory's dust collection system to continuously generate negative pressure dust collection.

[0024] The first cleaning device includes a first brush roller 330 disposed at the discharge port. The first brush roller 330 extends forward and backward. The first brush roller 330 has a roller shaft and brush bristles disposed on the roller shaft. The brush bristles are flexible material components. The distance between the roller shaft and the conveyor belt 300 is greater than the vertical dimension of the ceramic part, so that the brush roller will not block the passage of the ceramic part. The bristles extend radially along the roller shaft, and the length of the bristles is greater than the distance between the roller shaft and the conveyor belt 300, so that the bristles can clean not only the ceramic part but also the conveyor belt 300. The rotation direction of the first brush roller 330 is clockwise, so that the linear velocity direction of the bottom of the first brush roller 330 is from right to left. The first brush roller 330 is used to clean the conveyor belt 300 and the ceramic part on the conveyor belt 300 to the left.

[0025] The second cleaning device includes a second dust cover 410 disposed in the second cleaning area and a second brush roller 420 disposed inside the second dust cover 410. The second dust cover 410 is fixedly disposed on the base frame 100. The second brush roller 420 extends forward and backward. The front end and rear end of the second brush roller 420 are respectively rotatably disposed on the front side wall and rear side wall of the second dust cover 410. The second dust cover 410 is provided with a second cleaning motor for driving the second brush roller 420. The second brush roller 420 and the second cleaning motor can be connected by a pulley belt mechanism, chain mechanism, gear mechanism or other suitable transmission mechanism. The second brush roller 420 is used to clean the conveyor belt 300. The second dust cover 410 is provided with a second suction port 411. In use, the second suction port 411 can be connected to the factory's dust collection system to continuously generate negative pressure dust collection.

[0026] In related technologies, when ceramic dust is generated during the grinding of the previous ceramic part and falls onto the conveyor belt 300, it will reduce the friction between the next ceramic part placed on the conveyor belt 300 and the conveyor belt 300, which will make the ceramic part slippery.

[0027] In this invention, the ceramic part is placed at the left end of the conveyor belt 300, which then feeds it into the grinding area for grinding. After grinding, the ceramic part is moved to the right end of the conveyor belt 300, where it is removed by the operator. By setting up a first cleaning device and a second cleaning device, the first cleaning device can clean the ceramic part while simultaneously cleaning the ceramic dust on the conveyor belt 300, sweeping the dust into the grinding area so that most of the ceramic dust generated during grinding is sucked away by the first suction port 203. The second cleaning device can... After the ceramic parts are removed, the conveyor belt 300 is further cleaned. During the cleaning, the conveyor belt 300 is located above the second brush roller 420. The gravity of the ceramic dust itself can promote the separation of the ceramic dust from the conveyor belt 300, so that the remaining small part of the ceramic dust is sucked away by the second dust suction port 411. The ceramic dust attached to the conveyor belt 300 is cleaned in a secondary cleaning. This can remove the ceramic dust on the conveyor belt 300 and prevent the friction between the next ceramic part placed on the conveyor belt 300 and the conveyor belt 300 from decreasing, so that the ceramic part is not easy to slip.

[0028] In some embodiments of the present invention, a first dust cover is provided on the outer side of the first brush roller 330. The first dust cover can prevent dust raised by the first brush roller 330 from drifting into the surrounding environment, which is beneficial to maintaining the working environment.

[0029] In some embodiments of the present invention, reference is made to... Figure 3 The first dust cover includes a fixed portion 340 fixed to the grinding dust cover 200 and an opening / closing portion 310 stacked on top of the fixed portion 340. The opening / closing portion 310 is hinged to the fixed portion 340 via a first hinge shaft extending front and rear. A first brush roller 330 is disposed on the opening / closing portion 310. A locking mechanism 320 is provided between the fixed portion 340 and the opening / closing portion 310. Both the fixed portion 340 and the opening / closing portion 310 have a front support plate, a rear support plate, and an arc-shaped plate connecting the front support plate and the rear support plate, so that when the opening / closing portion 310 rotates relative to the fixed portion 340, the opening / closing portion 310 and the fixed portion 340 can still maintain a seal. The front end and rear end of the first brush roller 330 are rotatably disposed on the front support plate and the rear support plate of the opening / closing portion 310, respectively. The opening / closing portion 310 is provided with a first cleaning motor for driving the first brush roller 330 to rotate. The sweeping motors can be connected by a pulley belt mechanism, chain mechanism, gear mechanism or other suitable transmission mechanism; the first hinge shaft and the first brush roller 330 are not coaxial; in this way, even if the first brush roller 330 is worn to a certain extent, the operator can rotate the opening and closing part 310 to adjust the distance between the first brush roller 330 and the conveyor belt 300, so that the first brush roller 330 can still clean the conveyor belt 300 and ceramic parts, avoiding the problem of high equipment operating costs caused by the need to frequently replace the first brush roller 330.

[0030] In some embodiments of the present invention, the fixed portion 340 is provided with a plurality of positioning holes 341, the plurality of positioning holes 341 are arranged in an arc around the first hinge axis, the opening and closing portion 310 is provided with a insertion hole, the locking mechanism 320 includes a pin 321 that passes through the insertion hole and is inserted into one of the positioning holes 341, and a first elastic member is connected between the pin 321 and the opening and closing portion 310. The opening and closing part 310 is stacked on the side of the fixed part 340 opposite to the discharge port. The pin 321 extends forward and backward and is set on the front support plate or the rear support plate of the opening and closing part 310. The end of the pin 321 is provided with a handle so that the operator can hold the handle to pull the pin 321. The first elastic element can be a spring. Both the handle and the first elastic element are set on the side of the opening and closing part 310 opposite to the discharge port. In addition, the locking mechanism 320 may also include two pins 321, which are respectively set on the front support plate and the rear support plate of the opening and closing part 310. Pulling the pin 321 causes it to disengage from the positioning hole 341, thereby adjusting the position of the opening and closing part 310. After adjustment, the pin 321 is released, and the pin 321 is inserted into the corresponding positioning hole 341 under the action of the first elastic element, thus achieving locking. The structure is simple and the operation is convenient.

[0031] In some embodiments of the present invention, the polishing assembly includes at least one polishing mechanism, as shown in the reference. Figure 2 The grinding mechanism includes a lifting base 210 slidably connected vertically to a grinding dust cover 200 and a grinding motor 230 disposed on the lifting base 210. A drive shaft is disposed at the bottom of the grinding motor 230, and a grinding head 240 is disposed on the drive shaft. The grinding dust cover 200 is provided with a first driver 220 for driving the lifting base 210 to rise and fall. In this way, after the conveyor belt 300 transports the ceramic part to the grinding station, the grinding motor 230 drives the grinding head 240 to rotate, and then the first driver 220 drives the lifting base 210 to descend so that the grinding head 240 contacts the ceramic part, thereby realizing grinding.

[0032] In some embodiments of the present invention, a horizontally arranged partition 202 is provided inside the grinding dust cover 200, the drive shaft passes through the partition 202, and the grinding head 240 is disposed below the partition 202. The partition 202 can block most of the ceramic dust below the partition 202, preventing dust from drifting and adhering to the grinding motor 230, slide rail, and other components, thus avoiding problems such as malfunction. The first dust suction port 203 is disposed below the partition 202.

[0033] In some embodiments of the present invention, the polishing assembly includes three polishing mechanisms arranged sequentially and at intervals along the transverse direction. Each of the three polishing mechanisms can be equipped with a different polishing head 240, and the three polishing mechanisms, from left to right, are used for coarse polishing, medium polishing, and fine polishing, respectively, to achieve better polishing results.

[0034] In some embodiments of the present invention, the front and rear walls of the grinding dust cover 200 are each provided with a first dust suction port 203, see reference. Figure 4 The grinding components consist of two parts, with the two grinding mechanisms spaced apart. This maximizes the use of space within the grinding area, improving production efficiency, while the two first dust suction ports 203 evenly remove the dust generated by the two grinding mechanisms.

[0035] In some embodiments of the present invention, the grinding dust cover 200 is provided with a base 204, and two grinding components are respectively connected to the front and rear sides of the base 204. The base 204 is located above the partition 202, and both grinding components are located on the base 204, resulting in a reasonable and compact structure. The lifting seat 210 of the grinding component is slidably connected to the base 204 through a guide rail slider mechanism. The first driver 220 can be a structure in which a motor drives a ball screw, or it can be a linear motor, an electric push rod, or other linear driver, as long as it can drive the lifting seat 210 to rise and fall.

[0036] In some embodiments of the present invention, a control cabinet 910 is provided on the right side of the grinding dust cover 200 above the discharge port. The control cabinet 910 is used to house electronic components such as circuit breakers, servos, and switching power supplies required by the grinding machine. A switch box 920 is provided on the left side of the grinding dust cover 200 above the feed port. A control switch is provided in the switch box 920 for each grinding mechanism. The control switch is used to set the grinding pressure of the corresponding grinding mechanism so that the operator can set different grinding pressures according to different types of ceramic parts. The control switches that need to be frequently adjusted are placed outside the control cabinet 910 to avoid frequent opening of the control cabinet 910 and facilitate adjustment. The front wall and rear wall of the grinding dust cover 200 are provided with switch doors 201 on the upper and lower sides of the partition 202 to facilitate inspection and maintenance of the grinding motor 230 and the grinding head 240.

[0037] The grinding method of the second aspect of the present invention uses the above-described grinding machine to grind the base of a ceramic part. The grinding method includes the following steps: Place the ceramic part upside down at the upstream end of the conveyor belt 300; Control the conveyor belt 300 to send the ceramic parts to the polishing area; Control the grinding components to grind the ceramic parts located in the grinding area; Control the conveyor belt 300 to transport ceramic parts to the right, and control the first brush roller 330 to clean the conveyor belt 300 and the ceramic parts passing under it; Remove the ceramic parts that have been conveyed to the right end of conveyor belt 300; Control the second brush roller 420 to clean the conveyor belt 300.

[0038] By setting up the aforementioned grinding machine, the first brush roller 330 and the second brush roller 420 can clean the ceramic dust adhering to the conveyor belt 300, which helps to increase the friction between the ceramic parts and the conveyor belt 300 and prevent slippage.

[0039] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A bottom grinding machine, characterized in that, include: The conveyor belt has a grinding area on its upper side and a second cleaning area on its lower side, with the conveying direction to the right. A grinding device includes a grinding component and a grinding dust cover covering the outside of the grinding area. The grinding component is used to grind ceramic parts on the grinding area. The left and right walls of the grinding dust cover are respectively provided with a feed inlet and a discharge outlet corresponding to the upper side of the conveyor belt. The grinding dust cover is provided with a first dust suction port. The first cleaning device includes a first brush roller disposed at the discharge port, the first brush roller being used to clean the conveyor belt and the ceramic parts on the conveyor belt to the left; The second cleaning device includes a second dust cover covering the second cleaning area and a second brush roller disposed inside the second dust cover. The second brush roller is used to clean the conveyor belt, and the second dust cover is provided with a second suction port.

2. The grinding machine according to claim 1, characterized in that: The outer side of the first brush roller is provided with a first dust cover.

3. The grinding machine according to claim 2, characterized in that: The first dust cover includes a fixed part fixed to the grinding dust cover and an opening and closing part overlapping the fixed part. The opening and closing part is hinged to the fixed part by a first hinge shaft extending front and rear. The first brush roller is disposed in the opening and closing part. A locking mechanism is provided between the fixed part and the opening and closing part.

4. The grinding machine according to claim 3, characterized in that: The fixed part is provided with a plurality of positioning holes, which are arranged in an arc around the first hinge axis. The opening and closing part is provided with a insertion hole. The locking mechanism includes a pin that passes through the insertion hole and is inserted into one of the positioning holes. A first elastic element is connected between the pin and the opening and closing part.

5. The grinding machine according to claim 1, characterized in that: The polishing assembly includes at least one polishing mechanism, which includes a lifting base slidably connected vertically to the polishing dust cover and a polishing motor disposed on the lifting base. The bottom of the polishing motor is provided with a drive shaft, and the drive shaft is provided with a polishing head. The polishing dust cover is provided with a first driver for driving the lifting base to move up and down.

6. The grinding machine according to claim 5, characterized in that: The grinding dust cover has a horizontally arranged partition, the drive shaft passes through the partition, and the grinding head is located below the partition.

7. The grinding machine according to claim 5, characterized in that: The polishing assembly includes three polishing mechanisms, which are arranged sequentially at intervals along the transverse direction.

8. The grinding machine according to claim 5, characterized in that: The front and rear walls of the grinding dust cover are provided with the first dust suction port, and there are two grinding components, which are arranged at intervals.

9. The grinding machine according to claim 8, characterized in that: The grinding dust cover is provided with a base, and the two grinding components are respectively connected to the front and rear sides of the base.

10. A method for grinding the bottom, characterized in that: The base of a ceramic part is ground using a grinding machine as described in any one of claims 1 to 9, the grinding method comprising the following steps: Place the ceramic parts upside down at the upstream end of the conveyor belt; The conveyor belt is controlled to transport the ceramic parts to the polishing area; Control the grinding components to grind the ceramic parts located in the grinding area; Control the conveyor belt to transport ceramic parts to the right, and control the first brush roller to clean the conveyor belt and the ceramic parts passing under it; Remove the ceramic parts that have been conveyed to the right end of the conveyor belt; Control the second brush roller to clean the conveyor belt.

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